Determination of the moisture sorption behavior of osmotically dehydrated mackerel fillets by means of binary and ternary solutions

In this study, the moisture sorption isotherm of osmotically dehydrated mackerel fillets (Scomber japonicus) was experimentally determined. The fillets were osmotically dehydrated with solutions of salt (NaCl) (120 and 180 g per liter of solution) or in combination with sugar (350 to 700 g per liter of solution). The sorption isotherms were determined using the static gravimetric methodology with six salts for the water activity range of 0.33–0.98 at 5 ℃ and 25 ℃. All the sorption curves were found to be type III. Temperature and the final tissue salt content had significant (p